반응형
subnet (netmask) / bit / Host
255.255.255.0 /24 / 254
255.255.255.128 / 25 / 128
255.255.255.192 / 26 / 64
255.255.255.224 / 27 / 32
255.255.255.240 / 28 / 16
255.255.255.248 / 29 / 8
255.255.255.252 / 30 / 4
255.255.255.254 / 31 / 2
255.255.255.255 / 32 / 1